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Ideal nutrition for plants
The right CO2 concentration in the water is of great importance for the aquarium plants. Carbon dioxide is the main nutrient for plants and promotes their growth. Plants use the CO2 for the photosynthesis and thus supply the water with essential oxygen. They prevent algae growth, remove pollutants, provide hiding places and reduce pathogens.

Economical and direct
This practical JBL CO2 direct diffuser saves a diffuser in the aquarium, a bubble counter and a check valve. It even saves 20 % CO2 thanks to its ingenious functioning.

Easy to install
The ProFlora Direct Membrane ensures the finest atomization of the CO2 in the diffuser and can be replaced with just a few single steps in the JBL ProFlora direct.

Technical Data

To receive a consistent bubble pattern with fine micro bubbles, the modern ceramic PE hybrid membranes need to be soaked in water before being put into operation. If this is not done, large bubbles will occur.

Why does the CO2 Direct create large bubbles?

In order to enable the modern ceramic PE hybrid membrane to build consistent micro bubbles and to ensure an effective
CO2 spread in the water, it needs to be soaked in water for approx. 24 hours before being put into operation. Do not, therefore, switch on the CO2 supply after installation until the period of time mentioned has passed. Alternatively you can put the membrane into a bowl of water. Without this soaking the pores will not have enough water and will let large bubbles pass with an uneven distribution.

The check valve doesn’t seem to let CO2 pass through it. What can I do?

Please wait until sufficient pressure has built up in the CO2 hose. Alternatively you can sharply increase the CO2 supply for a short time.

The bubble counter doesn’t fill with water. What can I do?

If there is no water in the bubble counter after the installation, just wait a few hours before switching on the CO2 supply. The water jet of the filter will then cause water to enter it. Alternatively while installing it, you can fill the chambers of the bubble counter with water.

Misunderstandings – typical beginner mistakes

Based on our own experience in customer service and the many messages and questions we receive, we have put together the typical mistakes beginners may make. The experienced aquarist might well smile, but if they are honest, these are mistakes we all made at the start, aren’t they?

Installating the JBL Proflora Direct Inline Diffuser (Video)

Outline: Fertilisation in the Aquarium

The JBL plant care concept leads to vigorous and healthy growth even with the most demanding aquatic plants. JBL has all the components you need, whether it’s a fertiliser, a bottom substrate or a fully automatic CO2 fertiliser system.

Water values for water plants in detail

The story of liquid CO2 fertilisation – The Reliability

In the fourth part of the series “The story of liquid CO2 fertilisation” we examine what we consider to be the most important aspect. The health of your animals but also of you, the aquarium owners is our number one priority.

The story of liquid CO2 fertilisation – The Reliability

In the fourth part of the series “The story of liquid CO2 fertilisation” we examine what we consider to be the most important aspect. The health of your animals but also of you, the aquarium owners is our number one priority.

The story of liquid CO2 fertilisation

Why is carbon dioxide (CO2) the most important plant nutrient in the aquarium?

Carbon dioxide is the nutritional basis for aquatic plants which is supplemented through micro and macronutrients and light. The balance between all these elements is necessary for thriving plant growth in the aquarium.

Interzoo 2016 – JBL ProFlora CO2 fertiliser systems now even better

The new ProFlora CO2 fertiliser system is the last great innovation we presented at the world's leading trade fair, and it too is even better than its predecessor model. We would like to briefly explain why this is so.

From May 26 to May 29, 2016 the world’s leading trade fair Interzoo opened its doors for the 34th time in Nuremberg. The trade fair, exclusively aimed at the specialist trade, showcased product innovations from all over the world.

Fertilization is not just fertilization Part 1

Unlike in natural waters, aquariums with fish mostly have a surplus of nutrients caused by feeding and the resulting fish excrement. Thus nitrates and phosphates in large (often too large!) quantities are available for the plants.

Oxygen Explosion in the Aquarium – The Right Fertilisation

Supply of CO2 without diffuser

Sometimes technical devices, such as a CO2 diffuser inside the tank, can spoil the look of an aquarium. JBL has developed a direct diffuser which is simply integrated into the water hose coming from the external filter, and the diffuser stays outside the tank.

ProScape dosage calculator

Here you can calculate the optimal supply for your aquarium with the JBL ProScape fertilizers. In order to supply the aquatic plants with exactly the right amount of fertilizer, we recommend dosing in two steps.

Water Analysis Online Laboratory

Enter your water parameters and get an in-depth analysis of your values in a matter of seconds.
You enter your water values – and we analyse! Here you have the opportunity to enter the measured water values directly into the JBL Online Laboratory. This will analyse your values and explain and submit corrective measures.